Example usage for java.io BufferedReader readLine

Introduction

In this page you can find the example usage for java.io BufferedReader readLine.

Prototype

public String readLine() throws IOException

Source Link

Document

Reads a line of text.

Usage

From source file:Main.java

public static void main(String... args) throws IOException {
    String oneLine = processFile((BufferedReader b) -> b.readLine());
    System.out.println(oneLine);//from  ww w. ja v  a2 s  .co  m

    String twoLines = processFile((BufferedReader b) -> b.readLine() + b.readLine());
    System.out.println(twoLines);

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    System.out.print("Enter your name: ");
    InputStreamReader reader = new InputStreamReader(System.in);
    BufferedReader in = new BufferedReader(reader);
    String name = in.readLine();
    System.out.println("Hello, " + name + ". Enter three ints...");
    int[] values = new int[3];
    double sum = 0.0;
    for (int i = 0; i < values.length; i++) {
        System.out.print("Number " + (i + 1) + ": ");
        String temp = in.readLine();
        values[i] = Integer.parseInt(temp);
        sum += values[i];//from   ww w .ja  va2 s .  c  om
    }
    System.out.println("The average equals " + sum / values.length);
}

From source file:Main.java

public static void main(String[] args) {
    System.out.println("Enter a number.");
    double numberFromConsole;
    try {//from  w w  w  . j av a2 s.  c o m
        InputStreamReader isr = new InputStreamReader(System.in);
        BufferedReader br = new BufferedReader(isr);
        String s = br.readLine();
        DecimalFormat df = new DecimalFormat();
        Number n = df.parse(s);
        numberFromConsole = n.doubleValue();
    } catch (IOException e) {
        numberFromConsole = 0;
    } catch (ParseException e) {
        numberFromConsole = 0;
    }
    System.out.println(numberFromConsole);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String first, last = null, line;
    BufferedReader in = new BufferedReader(new FileReader(args[0]));
    first = in.readLine();
    while ((line = in.readLine()) != null) {
        if (line != null) {
            last = line;// w  w w  .ja v a2  s.  co  m
        }
    }
    System.out.println(first + "\n" + last);
    in.close();
}

From source file:FileReaderDemo.java

public static void main(String args[]) throws IOException {
    FileReader fr = new FileReader("FileReaderDemo.java");
    BufferedReader br = new BufferedReader(fr);
    String s;/* ww  w  .j  ava  2  s.com*/

    while ((s = br.readLine()) != null) {
        System.out.println(s);
    }

    fr.close();
}

From source file:MainClass.java

public static void main(String[] a) {

    FileReader fr;/*from  w ww .  j a  v  a2 s.c  o m*/
    try {
        fr = new FileReader(new File("yourFile.txt"));
        BufferedReader br = new BufferedReader(fr);
        String line = br.readLine();
        while (line != null) {
            System.out.println(line);
            line = br.readLine();
        }
        br.close();

    } catch (Exception e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

From source file:ReadConsole.java

public static void main(String args[]) throws Exception {
    InputStreamReader isr = new InputStreamReader(System.in);

    BufferedReader br = new BufferedReader(isr);

    String s;//from  w w w.  j a  va 2 s . c om
    while ((s = br.readLine()) != null) {
        System.out.println(s.length());
    }
    isr.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {

    String thisLine = null;// w  w w .j  a v  a  2  s.com

    BufferedReader br = new BufferedReader(new FileReader("c:/test.txt"));
    while ((thisLine = br.readLine()) != null) {
        System.out.println(thisLine);
    }

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
    String strLine = in.readLine();
    BufferedWriter out = new BufferedWriter(new OutputStreamWriter(System.out));
    out.write(strLine, 0, strLine.length());
    out.flush();/* w ww .  ja  v  a2s  . c  o m*/
    in.close();
    out.close();
}

From source file:Main.java

public static void main(String[] ap) {
    String line = null;//w w  w . jav  a2 s. c o  m
    int val = 0;
    try {
        BufferedReader is = new BufferedReader(new InputStreamReader(System.in));
        line = is.readLine();
        val = Integer.parseInt(line);
    } catch (NumberFormatException ex) {
        System.err.println("Not a valid number: " + line);
    } catch (IOException e) {
        System.err.println("Unexpected IO ERROR: " + e);
    }
    System.out.println("I read this number: " + val);
}